Sand-blast device.



S. L. YOUNG.

SAND BLAST DEVICE APPLICATION FILED JULY 22, 1908.

//v VEN 7'05;

Patented May 25, 1909.

UNITED STATES PATENT OFFICE.

SAMUEL LOUIS YOUNG, OF NEW CASTLE, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO HOMER O. DRAKE, OF NEW CASTLE, PENNSYLVANIA.

SAND-BLAST DEVICE To all whom it may concern:

Be it known that I, SAMUEL LOUIS YOUNG, a citizen of the United States, residing at New Castle, in the county of Lawrence and State of Pennsylvania, have invented certain new and useful Improvements in Sand-Blast Devices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention consists in a mechanical device for abrading the surface of glass and metals by automatically repeating the use of the same abrading material, and collecting and preventing the escape of dust therefrom. I attain these objects by the mechanism illustrated in the accompanying drawings, in Which Figure 1 is a vertical exterior side view. Fig. 2 is a horizontal top view. Fig. 3 is a vertical front view, and Fig. 4 is a vertical cross-section View on the line :ry of Fig. 3.

Similar letters refer to similar parts of the device throughout the several drawings.

The exterior of the device consists of two inclosed cases, or boxes, constructed on the lines shown in Fig. 1; the larger containing the fan-Wheel cases, A and C, and the smaller, B, being a dust receptacle, open at the bottom as shown at m, and containing a sand box f, formed by a perpendicular partition extending from side to side of said receptacle and the outside walls thereof, and provided with a bottom, 10 pivoted at either end in the center in the outside walls, so as to be movable, and manipulated by the rod 19, attached to the inner side thereof, and extending to, and out of the box at the top. Extending horizontally across, and separating the fanwheelcases A and C is a partition d, having 0 enings at r and s at either side, so as to afiow free air passages from one to the other of these fan-wheel cases. At the front, and

extending from the top to the bottom, obliquel of fan-case O is a partition 6 the wi th of the case.

Each fan-case is Specification of Letters Patent.

Application filed July 22, 1908.

Patented May 25, 1909.

Serial No. 444,861.

equi ped with a fan wheel I) and c, the circum erence of b being double that of c, the axles of each extending through the Walls of the fan-cases, on which are pulleys h and of relative size of the fan-wheels, for proelling the same. In the front wall of the fan-case A is an aperture, or opening a for the reception of the articles to be abraded, the size of this opening being adjusted by means of the sliding door a, operating in grooves at either side. Extending through the upper convex side of fan-wheel case A and the concave side of the dust box B is an opening 0, the width of the walls, to permit the dust and light debris in the abrading sand to pass from A to B by air current created by the revolutions of the fan-wheel A. To bind the dust box B to the fan-wheel cases A and C screws, hasps or hooks may be used.

In operating, the fan-wheels are propelled by electric, or other motor power, in the direction indicated by the arrow heads in Fig. 4, communicated by means of the pulleys h j. The abrading sand is placed in the sand box f, from whence it passes by manipulating the bottom is, by the rod through the openin m into the fan-whee? case C Where it is taken up by the blades of the fan 0 and thrown upward through the aperture 1" into fan-wheel case A, where it is caught by the blades of fan I) and driven against the object bein abraded in the opening n, from which it fal s through the aperture 8, on the partition 6, and by gravity descends to the fan 0 to be again taken up by it and carried into fan-wheel casing A, and so continuously kept in motion; the dust and lighter debris being carried by the air current from the fan I) upward through the opening 0 into'the dust box B where it is met by the counter current of air from the fan 0, and settles on the concave side of the dust box.

I therefore claim 1. The combination in a sand blast machine of a lower casing, oblique partition and fan wheel located therein and an upper fan wheel case partially separated from said lower casing by a horizontally laced partition and a fan wheel mounted t ierein.

2. The combination in a sand blast machine of communicating up er and lower fan 5 In testimony whereof, I aflix my signature, Wheel cases, a dust receptac e fastened there- 1 111 presence of two wltnesses. to and opening at the bottom into the lower v 1 E U tan Wheel case, the upper case and dust SALIU L LODIS 1 on 5 receptacle bemg provlded with registering 1 \V1tnesses:

openings and a sand box located Within said R. L. HILDEBRAND,

dust receptacle, as substantially set forth. i V. B. MoIVER. 

